Determination of Climatic Boundary Conditions for Vehicular Real Driving Emission Tests

Yoganandam Sriramulu; Senthil Kanagaraj; Manikandan R; Karthikeyan KJ

doi:10.4271/2019-01-0758

Vehicular Emission testing is gaining importance over the past years in the wake of requirements for real driving emissions with implementation of RDE packages across Europe / USA and various developing countries.

Extending the same concept for other countries poses slight challenges in terms of geographical and climatic conditions prevailing in the country, where the climatic conditions are differing from Europe / USA. It is a challenge to accept the same boundary conditions as in Europe, at the same time the challenge is to find a threshold number in a more scientific manner.

This study concentrates on determination and recommendation of thresholds for ambient temperature and altitude. The basis for temperature threshold would be to determine the percentage of time the temperature exceeded beyond the threshold over year in the country. The basis for Altitude is considered based on the percentage of total length of roads beyond the threshold altitude limit. For both threshold limits, the base data are obtained from open source publicly available and the processing of the data to suit our requirements is the key element of this paper and the approaches are clearly defined using Python, Geopandas and many other modules.

The tool is developed and used for recommending thresholds for any given country

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Determination of Climatic Boundary Conditions for Vehicular Real Driving Emission Tests 2019-01-0758

SAE MOBILUS